I'm try compile android from source, either Marshmallow or Nougat. When I'm got update.img and apply into VIM Pro (either i'm tried VIM) I'm always receiving on the HDMI screen message "system ui has stopped". It's quite anoying, is comming like every two second again and again. I have same issues for Android 6 and Android 7. For both systems and images I'm always try erase emmc before by pressing magic buttons (pwr btn+functions+reset).

The results is same, only have feeling is takes like 2-3 second, when windows is appear. Just point, what i'm not mentioned, sorry for that. I'm not able controll the system by console in my both Android builds. Simply data are sent to terminal (LNX_RX/TX) but no response from system. Where khadas build I can normally controll the system. Can be that this issue?

about ADB I'm try yesterday a lot, but I'm gave it up for Android6 and try today in fresh compilation with Android7

I can run 'debugging mode' in android6. Even I'm able to brings wifi on, so either I have in adb list device by network or usb I had unauthorized devices. (one with IP and second with 123456789ABCDEF) Non of the examples here not helps:stackoverflow.com

what I'm see, or guess is missing, when I'm enabled debugging mode is missing info about RSA keys.

then I'm even try (was hard ) install the console program and run catlog from that. Unfortunately I'm not able to transfer file from VIM to host. Is missing either usb normal connections or I haven't rights to write to USB stick/micro SD card.

and next point, log should be so short.. in normal android i'm see log is around 800Kb, where is a few kB. So probably only chance is make "real" screenshots from cat the log text. I'm not really looks into, but can be there is something like missing partitions 8 on emmc? Because this what I'm saw it in log.

You can refer to Setup Serial Debugging ToolOf course, you need to type 'enter' button on your keyboard to enter input modeIf you still don't type in Kermit after doing that, you maybe need to check the connection of serial

i have fully working USB-TTL connections, and I'm not able to type anything when I'm use image for android 6. Simply VIM not able to receive any character (I'm got data from VIM, isn't accept any). Normally when I'm run your pre-recompiled, I can control vim that way. For that reason I'm try yesterday to do by internal console program to get the log.

In next hours I will try android 7, what I have same issues, maybe I have more luck to get the log. (console control isn't working same way like in Android6). And what I'm for sure want to try is store whole image to try. but this will be later, if I have still same issue with android 7